Pulse width adjustable Q-switched cavity dumped laser by rotating a quarter-wave plate and a Pockels cell

Liu, Ke; He, Li-Jiao; Yang, Bo; Wang, Xiaojun; Shen, Yu; Zhao, Lei; Yuan, Lei; Peng, Qinjun; Cui, Dafu; Xu, Zuyan

doi:10.1364/ol.42.002467

Cited by 10 publications

(8 citation statements)

References 13 publications

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“…Pokelso narveliai leidžia didelio intensyvumo lazerio spindulių poliarizaciją valdyti aukštu dažniu ir trumpomis atsako trukmėmis. Tai lėmė platų šių moduliatorių pritaikomumą lazeriuose (Liu ir kt. 2017;Zhang ir kt.…”

Section: Pokelso Narvelių Optinių Schemų Apžvalgaunclassified

Pjezoelektrinių virpesių slopinimo pokelso narveliuose tyrimas

Sinkevičius¹

2021

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Vilnius, 2021 Disertacija rengta 2017-2021 metais Valstybiniame mokslinių tyrimų institute Fizinių ir technologijos mokslų centre. Vadovas prof. dr. Algirdas BAŠKYS (Valstybinis mokslinių tyrimų institutas Fizinių ir technologijos mokslų centras, elektros ir elektronikos inžinerija -T 001). Vilniaus Gedimino technikos universiteto elektros ir elektronikos inžinerijos mokslo krypties disertacijos gynimo taryba: Pirmininkas prof. dr. Dalius NAVAKAUSKAS (Vilniaus Gedimino technikos universitetas, elektros ir elektronikos inžinerija -T 001). Nariai: doc. dr. Aidas MATIJOŠIUS (Vilniaus universitetas, fizika -N 002), prof. dr. Jurij NOVICKIJ (Vilniaus Gedimino technikos universitetas, elektros ir elektronikos inžinerija -T 001), dr. Iouliia SKLIAROVA (Aveiro universitetas, Portugalija, elektros ir elektronikos inžinerija -T 001), prof. dr. Algirdas SUŽIEDĖLIS (Valstybinis mokslinių tyrimų institutas Fizinių ir technologijos mokslų centras, fizika -N 002). Disertacija bus ginama viešame Elektros ir elektronikos mokslo krypties disertacijos gynimo tarybos posėdyje 2021 m. lapkričio 9 d. 10 val. Vilniaus Gedimino technikos universiteto senato posėdžių salėje.

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Section: Pokelso Narvelių Optinių Schemų Apžvalgaunclassified

Pjezoelektrinių virpesių slopinimo pokelso narveliuose tyrimas

Sinkevičius¹

2021

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“…According to the refractive-index dispersion equations and thermo-optic coefficients of the crystal, the waveplate thickness d for different values of m, θ , λ, and T can be determined using Equations (3), ( 4), (6), and (7). The waveplate can be processed at different deviating angles θ ; thus, its thickness can be selected from millimeter to centimeter order, and its mechanical strength can be increased drastically.…”

Section: A Theoretical Designmentioning

confidence: 99%

“…The waveplate, which is also known as a phase retarder, is an important optical component that can change the light polarization state by utilizing the birefringence feature [1]- [5]. It is employed in various optical and laser apparatuses related to light polarization, such as photoelastic instruments, polarimeters, and electro-optic (E-O) Q-switched solid-state lasers [6], [7]. In general, there are three types of waveplates: multiple-order waveplates (MWPs), true zero-order waveplates (TZWPs), and compound zero-order waveplates (CZWPs), which are composed of more than two plates.…”

Section: Introductionmentioning

confidence: 99%

Preparation, Characterization and Application of Ultrathick True Zero-Order KDP Crystal Waveplates

Ren

Wang

et al. 2019

IEEE Access

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In crystal space, the birefringence varies continuously with respect to the propagating direction of the light wave. By utilizing this property, we design and fabricate a series of ultrathick true zero-order (TZ) waveplates based on KH 2 PO 4 crystals with different orientations for the first time. When the cutting angle θ is 5 • , the thickness d of the 1,064-nm TZ half-wave plate (HWP) is 2.0 mm, which is 33 times larger than that of the traditional quartz TZ device (∼0.06 mm). At a temperature of 30 • C, its extinction ratio for the Nd:YAG pulse laser reaches 1,970:1. When the temperature increases to 80 • C, the extinction ratio remains above 1,000:1. When the extinction ratio decreases to 200:1, the angular acceptance bandwidth and wavelength acceptance bandwidth are determined to be 0.3 • and 45 nm, respectively. With the ultrathick TZ HWP and a quarter-wave plate (QWP), efficient type-II frequency doubling and electro-optic Q-switching, respectively, are achieved. As a famous optical crystal, KDP has been popularly used as a frequency converter, a laser Q-switcher, an electro-optic modulator, and a solid-state light valve display. This paper disclosure a new application of this traditional material, i.e. large size, high mechanical strength, low-cost, and high-quality TZ crystal waveplates. Such components have wide application prospects in various optical and laser systems which need controlling the polarization of light.

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“…We previously reported a simple pulse-duration adjustable 1064 nm QCD laser through rotating the angle of a quarter-wave plate (QWP) and a PC. The pulse duration adjustment regime from 4.8 to 7.8 ns was demonstrated with a constant average output power of 3.6 W, but in order to enlarge the pulse duration adjustment regime from4.8 to 13.5 ns, only a lower output power of 1.3 W was realized [14].…”

Section: Widely-duration-tunable Nanosecond Pulse Nd:yvo 4 Laser Base...mentioning

confidence: 99%

Widely-duration-tunable nanosecond pulse Nd:YVO₄ laser based on double Pockels cells

Liu

Yang

et al. 2018

Laser Phys. Lett.

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The development of duration-tunable pulse lasers with constant output power is important for scientific research and materials processing. We present a widely-duration-tunable nanosecond (ns) pulse Nd:YVO4 laser based on double Pockels cells (PCs), i.e. inserting an extra PC into a conventional electro-optic Q-switched cavity dumped laser resonator. Under the absorbed pump power of 24.9 W, the pulse duration is adjustable from 31.9 ns to 5.9 ns by changing the amplitude of the high voltage on the inserted PC from 1100 V to 4400 V at the pulse repetition rate of 10 kHz. The corresponding average output power is almost entirely maintained in the range of 3.5–4.1 W. This represents more than three times increase in pulse duration tunable regime and average power compared to previously reported results for duration-tunable ns lasers. The laser beam quality factor was measured to be M2 < 1.18.

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Pulse width adjustable Q-switched cavity dumped laser by rotating a quarter-wave plate and a Pockels cell

Cited by 10 publications

References 13 publications

Pjezoelektrinių virpesių slopinimo pokelso narveliuose tyrimas

Pjezoelektrinių virpesių slopinimo pokelso narveliuose tyrimas

Preparation, Characterization and Application of Ultrathick True Zero-Order KDP Crystal Waveplates

Widely-duration-tunable nanosecond pulse Nd:YVO₄ laser based on double Pockels cells

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Pulse width adjustable Q-switched cavity dumped laser by rotating a quarter-wave plate and a Pockels cell

Cited by 10 publications

References 13 publications

Pjezoelektrinių virpesių slopinimo pokelso narveliuose tyrimas

Pjezoelektrinių virpesių slopinimo pokelso narveliuose tyrimas

Preparation, Characterization and Application of Ultrathick True Zero-Order KDP Crystal Waveplates

Widely-duration-tunable nanosecond pulse Nd:YVO4 laser based on double Pockels cells

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About

Widely-duration-tunable nanosecond pulse Nd:YVO₄ laser based on double Pockels cells